The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5855-01-085-5354
NSN 5945-00-725-8957
NSN 5960-01-544-1273
NSN 6645-01-620-4837
NSN 6105-01-185-3306
NSN 6145-01-172-5630
NSN 5960-01-142-1995
NSN 5996-01-445-5528
NSN 5835-01-502-9228
NSN 5905-01-047-3770
NSN 6220-01-077-9868
NSN 5935-01-129-7514